-- @testpoint: opengauss关键字parameter_specific_catalog(非保留)，作为函数名,部分测试点合理报错

--关键字不带引号-成功
drop function if exists parameter_specific_catalog;
create function parameter_specific_catalog(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带双引号-成功
drop function if exists "parameter_specific_catalog";
create function "parameter_specific_catalog"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带单引号-合理报错
drop function if exists 'parameter_specific_catalog';
create function 'parameter_specific_catalog'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `parameter_specific_catalog`;
create function `parameter_specific_catalog`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function if exists parameter_specific_catalog(integer);
drop function if exists "parameter_specific_catalog"(integer);